Vacumed has distinct series. The details as follow. In article no 42481, Vacumed 13x75 mm with Sodium Citrate 3,8% x 2,7 ml of blood for coagulation, light blue cap, sterile. In article no 42480, Vacumed 13x75 mm with Sodium Citrate 3,8% x 1,8 ml of blood for coagulation, light blue cap, sterile. In article no 42412, Vacumed 13x75 mm with Sodium Citrate 3,2% x 3,6 ml of blood for coagulation, light blue cap, sterile. In article no 42411, Vacumed 13x75 mm with Sodium Citrate 3,2% x 2,7 ml of blood for coagulation, light blue cap, sterile. In article no 42410, Vacumed 13x75 mm with Sodium Citrate 3,2% x 1,8 ml of blood for coagulation, light blue cap, sterile.